有波纹的

基本解释 (translations)

crimped  ·  ripply  ·  ripplier

与有波纹的相关的网络例句 [注：此内容来源于网络，仅供参考]

The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.

理论分析和试验研究表明： 1球轴承振动是钢球—滚道接触副中的各种摩擦学作用引起的，具有摩擦动力学的本质，任何对接触副的摩擦学特性有影响的因素都将对球轴承的振动和噪声特性产生影响； 2中心轴向载荷作用下，载荷增大使球轴承的固有振动频率升高，载荷越大同样的载荷增幅引起的频率升幅减小，足够大的中心轴向载荷作用下载荷的变化对球轴承振动的频率特性不会产生明显的影响； 3轴向和径向联合载荷作用下，径向载荷不大时球轴承振动的固有频率基本不变，但是可能引起变刚度激励的非线性振动，出现新的频峰，过大的径向载荷将使部分钢球脱离接触，使球轴承的振动和噪声呈现不稳定状态； 4润滑对球轴承的振动和噪声特性有重要的影响，良好的润滑对振动有明显的抑制作用，润滑不充分时，振动和噪声的水平会有明显增高，一定条件下还会激发接触副中的谐振，发出啸声，造成接触表面的伤害，无润滑干接触时，短时的运转就会损伤接触副表面，使振动和噪声迅速增大，并随时可能引发严重的磨损和卡滞失效；接触副润滑良好时，油膜的"刚化效应"使球轴承振动的固有频率有所提高，润滑剂中含有弥散性污浊时，振动的幅度总体升高，但弥散性污浊不会改变球轴承振动的频率特性；浙江大学博士学位论文：球轴承振动的研究 5低速时，球轴承振动的基本特征呈现不稳定状态，随着转速的提高，球轴承振动的频率特性趋于稳定，固有频率频峰升高； 6理论分析表明，干接触时钢球和滚道表面波纹度的某些谐波分量能激励球轴承的振动，振动的幅值与谐波幅值成正比，实际球轴承中钢球的分布不可能完全均匀，波纹度的激励作用会随时发生；润滑接触的分析表明，波纹度的任意谐波分量均能激励球轴承的振动； 7球轴承的几何和结构参数分析表明，球轴承尺寸越大，径向、轴向和角振动的固有频率越低；钢球中心圆直径增大，球轴承的径向和轴向振动的固有频率基本不变，角振动的固有频率有所上升，振动的幅频特性基本不变；径向游隙加大使球轴承的径向振动固有频率降低，轴向和角振动的固有频率有所升高，径向振动幅频特性的幅值升高，而轴向和角向降低；钢球的数量增多使球轴承振动的固有频率上升，幅频特性的幅值下降，径向振动的幅值下降最为明显；外圈沟曲率半径系数增大使球轴承径向振动的固有频率升高，轴向和角振动的固有频率降低，径向幅频特性基本不变，轴向和角向幅频特性幅值升高；内圈沟曲率半径系数增大使径向、轴向和角振动固有频率均下降，振动幅频特性的幅值均有升高； 8试验对比表明，传感器采用探针式安装时，由于探针接触副接触特性的影响，钡(量得到的球轴承振动信号有失真，采用专门设计和制作的试验球轴承，以固定式安装加速度计，首次测量得到了球轴承振动的真实信号，通过对振动信号的分析，验证了球轴承振动的理论模型； 9)基于时间序列分析的AR模型适用于大样本球轴承振动信号的分析，以样本长度的均方根值作定阶上界，FPE做判阶准则，给出的AR谱光滑，频率分辨率高，是球轴承振动分析的简便而可靠的手段； 10以时频域分析的小波包变换分析球轴承异音信号能够比较好地定位和聚焦异音发生的时间，时间间隔，频率范围，同样是球轴承振动分析的可靠的手段，可用作球轴承故障诊断技术。

"You may create lots of splaITs in your life, but the waves those coming from those splaITs will disturb the peace of all your fellow creatures," he say.

他说："在生命的水面上，你也许能激起许多波纹，而你所激起的波纹也会打破更多有联系人的平静，"

We know from ancient sources that her hair was a reddish color, wavy.

我们从古代资料了解到她的头发是浅红色的，有波纹的。

We know from ancient source that her hair was a reddish color, wavy.

我们从古代资料了解到她的头发是浅红色的，有波纹的。

We know from ancient sources that her hair was a reddish color, way. But look at her nose.

我们从古代资料了解到她的头发是浅红色的，有波纹的。

We know from ancient sources that her hair was a reddish color, wavy. But look at her nose.

我们 sSBbWw 从古代资料了解到她的头发是浅红色的，有波纹的。

Wood moved slowly, but not equally, with its mixture of springwood and summerwood, straight and wavy grain, knots, rings and imperfections.

木头的变化速度虽然不快，但是各部分的变化步调是不一致的——木头其实是一个包含各种元素的混合体：既有早材，又有晚材；既有直纹，又有波纹；还有木节、年轮和疵点。

Valves with bellows seals shall be furnished with a pressure gauge as an indicator when bellows have a leak.

波纹管密封的阀门应配备一个压力表作为波纹管有泄漏的指示计。

Outer coat firm and resilient, neither coarse nor silky, lying close to body; may be straight or wavy. Untrimmed natural ruff; moderate feathering on back of forelegs and on underbody; heavier feathering on front of neck, back of thighs and underside of tail. Coat on head, paws, and front of legs is short and even.

外层被毛竖硬而有弹性，既粗糙，也不柔软，紧密平铺于体表，呈直形或波纹形和不整齐的自然环状；前肢后部和身体下部生有适度的绒毛；颈前部、腿后部和尾下部主要有浓密的绒毛；头部、脚部和腿前的被毛短而平。

Single factor experiments were done with the factors including the width of protrusion and the trolley's velocity, which showed that the surface frictional coefficient decreases with the width of protrusion increasing, and doesn't change with the trolley's velocity changing, which was consistent with the results of the orthogonal experiment. A theoretical model of the horizontal projection of a corrugated bionic surface's contact area was built, which showed that the contact area's horizontal projection decreases with width and interval increasing respectively and that the ratio of the contact area's horizontal projection and the vertical load decreases with the vertical load increasing. It indicated that the surface frictional coefficient decreases with the above three factors increasing respectively. Finite element modeling and analysis of interactions of a plate and soils was done using ANSYS, which showed that the plate frictional coefficient is little relative to soil elastic modulus and decreases with vertical surface pressure and that trolley's pull and vertical displacement of bionic surface's control pilot keep constant almost during the plate being pulled. Finite element modeling and analysis of interactions of a corrugated bionic surface and soils was done using ANSYS, which showed that surface frictional coefficient is little relative to soil elastic modulus and decreases with bionic surface's structural parameters and vertical pressure increasing. However, the three factors all didn't affect the surface frictional coefficient remarkably on the condition of 90% dependability. For the first time, bionic surfaces were applied to screw piles, which formed bionic screw piles, and the contrast experiments showed the bionic screw pile had certain resistance-decreasing effects.

建立了波纹型仿生曲面与土壤的接触面积的水平投影的理论模型，表明接触面积的水平投影A随着波纹型仿生曲面突起宽度、两相邻突起间距的增大而减小，接触面积的水平投影与波纹型仿生曲面表面垂直载荷之比随着波纹型仿生曲面表面垂直载荷的增大而减小，进而得出仿生曲面摩擦系数随着波纹型仿生曲面突起宽度、两相邻突起间距以及表面垂直载荷的增大而减小；利用ANSYS软件对平板与土壤的相互作用进行了有限元建模与分析，表明平板摩擦系数与土壤弹性模量关系不大，而随着表面垂直载荷的增大而减小；平板牵引过程中台车牵引力和仿生曲面控制节点垂直方向位移基本保持不变；利用ANSYS软件对波纹型仿生曲面与土壤的相互作用进行了有限元建模与分析，表明波纹型仿生曲面系数在一定范围内基本不受土壤弹性模量的影响，随着波纹型仿生曲面突起宽度、两相邻突起间距以及表面垂直载荷的增大而减小，但在可信度为90％的前提下，三个因素影响都不显著；首次将波纹型仿生曲面应用于与土壤作用方式以挤压为主的螺旋桩，形成仿生螺旋桩，并与普通螺旋桩进行了沉桩对比试验，表明波纹型仿生曲面应用于螺旋桩桩体表面具有明显的降阻作用。

与有波纹的相关的网络解释 [注：此内容来源于网络，仅供参考]

fluted：有[带]槽的,有波纹[凹槽]的

flushing 清洗 | fluted 有[带]槽的,有波纹[凹槽]的 | flutter [动,名]颤振,振[脉,摆]动,振抖

Richard Meier：理查德.迈耶

一些建筑师只采用白色或是有波纹的金属钛,"霍尔说,似乎在影射偶像派建筑师理查德"迈耶(Richard Meier)和盖里(Gehry). "我们的建筑哲学就是避免特征鲜明的风格. "但是,纵观在霍尔所创造的建筑奇迹的清单中折射出的多样风格以及对不同材料的运用,

waviness：波纹

在超精密加工光学透镜模具或成品中,工件加工品质的要求有表面粗度、波纹(Waviness)与形状误差,其影响的因素有静态因素及动态因素[6],表面粗度的影响因素主要有刀具锐利度(Sharpness)、床台移动平滑度、主轴回转之非重复性误差与机器振动等.

crinite：有球发的/有发状尾的/有长软毛的

cringle /索眼/索圈/ | crinite /有球发的/有发状尾的/有长软毛的/ | crinkle /皱/缩/波纹/使皱/使缩/起皱/卷曲/

damaskeen：波纹/颗粒状花纹/加纹

damascenine /黑种草碱/ | damaskeen /波纹/颗粒状花纹/加纹/ | dame /贵妇人/主妇/对有相当于/授位的妇女之尊称/舍监/

dimply：有酒窝的; 起波纹的 (形)

dimple 酒窝; 涟漪 (名) | dimply 有酒窝的; 起波纹的 (形) | dimwit 傻瓜 (名)

Libellulidae：蜻蛉科

境内黄河中的浮游生物种类不多,计有波纹矽藻(Cymatopleura)新月矽藻(Cymbella)等15种浮游植物;浮游动物比较贫乏,习见的为桡足类幼虫及中剑(Mesocyclops),底悽动物有跳虾(Gummarus),蜻蛉科(Libellulidae),扁蜉科(Ecdyuridae),

ripply：有波纹的

ripply 起涟漪的 | ripply 有波纹的 | ripply 潺潺响的

ripply：潺潺响的

ripply 有波纹的 | ripply 潺潺响的 | riprap 用乱石筑基

ridges：波纹

mount:波纹的数量. | Ridges:波纹. | Style:风格,有以下三个选项.